In order for us to percieve the world as stable, particles need to "agree" on the same position. We can't have objects with different internal positions. That would make the world seem flickering or transparent.
So in order to make an object seem solid, all particles must assume the same position. They do that instantly via quantum entanglement.
That means entanglement is a neccessity to make the world appear solid.
Entanglement does not get spooky, unless you seperate individual parts, while keeping both under observation, and then change the position of one of them. The observation itself will then force both parts to act the same, because the observation prohibits them from acting independent. Observing locks the common position so to say.
Observing only one of them, will untangle them. Observation is paramount.
To make an every day example, we could assume walking down a narrow street on a harbour. At the end, you can see the tip af a large ship. The collapse of the wavefunction says there is only the tip. But if you add entanglement, the whole ship is there, because the particles of the ship share information!
